EP0976423B1 - Procédé et préparation pour extinction de feux - Google Patents

Procédé et préparation pour extinction de feux Download PDF

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Publication number
EP0976423B1
EP0976423B1 EP99113153A EP99113153A EP0976423B1 EP 0976423 B1 EP0976423 B1 EP 0976423B1 EP 99113153 A EP99113153 A EP 99113153A EP 99113153 A EP99113153 A EP 99113153A EP 0976423 B1 EP0976423 B1 EP 0976423B1
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Prior art keywords
gas
composition
aerosol
der
complete oxidation
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EP99113153A
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German (de)
English (en)
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EP0976423A1 (fr
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Nikolaj Vasil'evic d.7 kv.13 Drakin
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R Amtech International Inc
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R Amtech International Inc
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Priority claimed from RU98113952/12A external-priority patent/RU2147903C1/ru
Priority claimed from RU98122276/12A external-priority patent/RU2142306C1/ru
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D1/00—Surgical instruments for veterinary use
    • A61D1/06—Castrating appliances
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/006—Extinguishants produced by combustion

Definitions

  • the invention relates to the field of fire extinguishing technology, in particular Process for extinguishing fires using gas-aerosol mixtures, those when burning pyrotechnic compositions arise.
  • the method according to the invention and the device for deleting of fires ensure effective extinguishing of fires in extreme fire situations, as well as the survival of people and other living things that are in the fire zone.
  • Russian Patent 2,072,135 describes a method for Extinguishing fires known when burning a pyrotechnic charge creates a gas-aerosol mixture that interacts with combustion products in the fire zone and extinguishes the fire.
  • the gas-aerosol mixture Before the introduction to the protective space, the gas-aerosol mixture is cooled, whereby the mixture interacts with substances that are high heat absorbing and have gas-releasing properties, e.g. Carbonates, hydrates, hydrooxides, oxalates, and which are in the form of Have granules or tablets.
  • the device for realizing this method exists from a housing with a pyrotechnic composition, a heat protection layer and an outlet opening.
  • the pyrotechnic Composition is ignited with a standard igniter.
  • the cooling of the gas-aerosol mixture that occurs during combustion the pyrotechnic composition arises in a cooling block that acts as a container filled with coolants shaped and in the housing between the pyrotechnic Composition and the outlet opening is arranged.
  • a pyrotechnic gas aerosol-forming composition which as an oxidizing agent contains 67 to 72 percent by weight potassium nitrate with a particle surface area of at least 1500 cm 2 / g, and as a fuel binder 8 to 12 percent by weight phenol formaldehyde resin with a particle size of not more than 100 ⁇ m, and the balance gas aerosol forming agent, namely dicyandiamide having a particle size of not more than 15 ⁇ m.
  • the composition can additionally contain potassium carbonate, potassium benzoate or potassium hexacyanoferrate in an amount of 4 to 12% by mass.
  • oxidation catalysts become the combustion products used, selected from: metals: nickel, Cobalt, iron, manganese, chrome, aluminum, magnium, copper, platinum, Silver, their oxides and / or peroxides, salts, and their Alloys and mixtures.
  • the aerosol generating composition, the heat absorbing filling and the oxidation filling can be coated with the catalysts mentioned be or contain them in their compositions.
  • oxidant are selected from the following substances: ammonium nitrate, Potassium nitrate, sodium nitrate, calcium nitrate, barium nitrate, Strontium nitrate, ammonium perchlorate, potassium perchlorate, Sodium perchlorate and their mixtures.
  • gas aerosol images dicyandiamide is used, as a combustible binder, a polycondensate of formaldehyde with phenol, and as an oxidizing agent, potassium nitrate.
  • the gas aerosol images, the fuel binder and the oxidizing agent each consist of two fractions: 40 to 80 ⁇ m and 7 to 15 ⁇ m with a mass ratio of 80:20, 70 to 120 ⁇ m and 10 to 25 ⁇ m with a mass ratio of 70 : 30 or 15 to 25 ⁇ m and 1 to 7 ⁇ m with a mass ratio of 25:75, with the following composition of the components in% of the mass: Gas-aerosol Images 9 to 20 flammable binder 6 to 14 oxidant Rest.
  • the proportion of small size particles should be increased. This is achieved in that as gas-aerosol images dicyandiamide with a particle size of 40 to 80 microns and 7 to 15 microns with a mass ratio of 10:90, as an oxidizing agent potassium nitrate with a particle size of 15 to 25 microns and 1 to 7 ⁇ m at a mass ratio of 5:95, and a polycondensate of formaldehyde with phenol is used as the binder, the composition of the components in percent by mass being as follows: Gas-aerosol Images 9 to 20 Flammable binder 6 to 14 oxidant Rest.
  • Particles of the phenol-formaldehyde resin are previously in Ethyl alcohol dissolved.
  • the 60% solution obtained is for used to obtain the pyrotechnic composition. While the preservation of the composition becomes the ethyl alcohol away. This solution ensures a firing temperature profile from 460 ° C in the condensed phase to 1050 ° C in the hottest Point of flame.
  • the following types of artificial zeolites are currently known: KA, NaA, NaX, which correspond to types 3A, 4A, 13X in the US classification.
  • the structure of type A zeolites consists of smaller and larger adsorption cavities.
  • the chemical formula of the NaA zeolite is: Na 2 O • Al 2 O 3 • 2SiO 2 • 4SH 2 O.
  • An elementary cell consists of a larger and a smaller cavity.
  • the larger cavity has a practically spherical shape with a diameter of 1.14 nm. It is over eight-membered oxygen rings with a diameter of 0.42 nm with six adjacent larger cavities and over six-membered oxygen rings with a diameter of 0.22 nm with eight smaller ones Cavities connected.
  • Figure 1 shows the structure of synthetic zeolites of types A (a) and X (b).
  • the type X zeolite has a similar structure. The difference is that each larger cavity has four entry openings, which are formed by twelve-membered oxygen rings with a diameter of 0.8 to 0.9 nm. Therefore, the structure of zeolites of this type is more open and accessible to gas molecules (NV Kel'cev. "Osnovy adsorbcionnoj techniki.” M.:Chimija. 1984).
  • the hot ( ⁇ ⁇ 750 ° C) gas aerosol that is released during the firing of the pyrotechnic composition leads to the heating of the zeolite surface.
  • the increase in temperature leads to an increase in the thermal pulsation of the zeolite lattice, which enables the gas molecules to penetrate more easily into the adsorption cavity formed by the oxygen rings.
  • Conditions arise within the cavity under which reactions of catalytic neutralization take place on the active surface of the zeolite cavities: 2NO t ⁇ N 2 + O 2 ; 2CO t ⁇ 2C + O 2
  • the neutralization reactions (1) and the subsequent reactions of complete oxidation (2) proceed effectively at temperatures above 700 ° C.
  • the area of complete oxidation in the form of a zeolite layer, which is enclosed between two metallic grids, is arranged in this connection in the area of the highest firing temperature (750 ° C.) of the specified pyrotechnic composition.
  • the rate of reactions (1) and (2) is slow.
  • temperatures above 800 ° C there are larger thermal pulsations of the zeolite lattice which lead to the collapse of the cavities and the reactions do not take place.
  • the effectiveness of the catalytic reactions can be increased by mounting the zeolite on a grid made of copper or a copper alloy.
  • a grid made of copper or a copper alloy When the zeolite structure is thermally pulsed, Cu 2+ cations can be introduced into these instead of Na + cations.
  • the modified zeolite resulting from the action of the hot gas-aerosol mixture increases its catalytic activity and, as a result, the concentration of toxic gases within the gas-aerosol mixture decreases.
  • Highly porous activated aluminum oxide can also be used as a catalytically active substance with a highly developed surface (300 to 345 m 2 / g).
  • the gas phase enters one Space containing the block of complete oxidation and the cooling block separates where they deal with the solid phase of the combustion products mixed the pyrotechnic composition.
  • the gas-aerosol mixture cleaned of the toxic products of incomplete combustion cools down through direct contact with the solid coolant.
  • Solid coolants such as: silica gel, zeolite and their mixtures and aluminum oxide. These substances have highly developed surfaces and porous structures that can adsorb various chemical compounds, including water.
  • the gas-aerosol mixture is cooled with the solid coolant mentioned by heat exchange.
  • the heat of the hot mixture is used to heat the solid coolant, to desorb the water and to convert the water to the vapor-like state.
  • Carbon which is excreted when the pyrotechnic composition is burned undergoes endothermic reactions with the desorbed water vapors as a result of reaction (1): C + 2H 2 O ⁇ CO 2 + 2H 2 - 178.15 kJ
  • the proposed method of extinguishing fires can be done with the known devices for extinguishing fires not in can be fully realized.
  • a device for extinguishing fires consisting of a housing with a pyrotechnic Charge, a heat protection layer, an outlet opening, an ignition device and a cooling block.
  • the cooling block is designed in the form of a room with granules or tablets of a coolant, and which is between the pyrotechnic charge and the outlet opening is.
  • the coolants are selected from: carbonates, hydrates, Hydrooxides and oxalates that have high heat absorption Features and high gas-excreting properties.
  • the main disadvantage of this device is that they receive a non-toxic gas-aerosol mixture cannot guarantee.
  • the reason for this is that the cooling block is arranged in front of the outlet opening, and the cooling process even from the excretion of toxic carbon oxides is accompanied without complete oxidation and filtration together with the gas-aerosol mixture in the to be protected Get space.
  • the heat absorbing load can additionally 10 to 60% of the Contain mass of an oxidizing agent, which from ammonium, Potassium, sodium, calcium, barium, stronzium nitrates is selected or from ammonium, potassium, sodium perchlorates or from their mixtures.
  • an oxidizing agent which from ammonium, Potassium, sodium, calcium, barium, stronzium nitrates is selected or from ammonium, potassium, sodium perchlorates or from their mixtures.
  • the device mentioned has a major disadvantage, namely the high toxicity of the fire-extinguishing gas-aerosol mixture.
  • This disadvantage can be explained by the choice of substances that are used as oxidizing agents. During their decomposition, these substances not only excrete oxygen, which is used for the complete oxidation of CO, NO, NH 3 , HCN, but also toxic products. Thus, when the nitrates are broken down, NO, NO 2 is eliminated, and when the perchlorates are broken down - HCl, NH 3 , Cl 2 .
  • the oxidizing agent of this type is located, namely as part of the heat-absorbing charge or as a separate oxidizing charge, the gas-aerosol mixture emerging from this device thus contains toxic products.
  • the proposed device overcomes these disadvantages.
  • the technical tasks set are suggested by the Fire extinguishing device solved, consisting from a housing with an outlet opening, one of the housing walls heat-insulated combustion chamber with arranged in it pyrotechnic composition, an ignition device, a block of catalytic complete oxidation, which is designed in the form of two metallic grids, taking the space between the grids with catalytically active Aluminosilicate (e.g. zeolite granulate) is filled.
  • a complete cooling block is arranged block of the complete oxidation.
  • a space between the blocks is used to mix the fully oxidized gas phase with the solid phase of the combustion products.
  • the cooling block is in the form of at least two Grid formed, the space between them with granules of fabrics filled, selected from the group of aluminosilicates, Silica gels or their mixtures with natural or artificial Humidity.
  • the number and size of openings in the grilles that are required for the block of complete oxidation and the cooling block depends on the required outflow speed of the gas-aerosol mixture and is tested taking into account the gasodynamic resistance of these blocks found.
  • Granules in various geometric shapes (cylinders, cones) as well as in various functions of the granulate distribution in terms of size. It plays an essential role the distance between the grids, the one to be filled with granules Defines space. With a locking ring with specified In height, each pair of grids can be arranged relative to one another.
  • the device for extinguishing fires is also included a compensation unit provided in the form of an elastic Spring trained and in different areas of the Housing can be arranged.
  • This unit compensates for the linear shift of the temperature profile when burning the pyrotechnic composition and ensures a constant Distance between the maximum temperature range of the temperature profile when burning and blocking the catalytic complete oxidation.
  • the device shown in Fig. 3 has a cylindrical Housing 1 with an inside diameter of approx. 50 mm, in one, in Fig. 3 lower end a pressed pyrotechnic Composition 4 is arranged on the central one Ignition device 5 is attached. On the upper face of the Composition 4 is a spacer ring 11a with a height of 10 mm placed, the outer diameter of which essentially Corresponds to the inner diameter of the housing 1.
  • a Artificial zeolite 7 of type A (NaY) with natural Moisture are placed, the granules are spherical is (diameter of the balls 2.6 to 4.5 mm).
  • spacer ring 11a Within the spacer ring 11a is between the pyrotechnic Composition and the cooling block 6 a combustion chamber 3rd educated.
  • the combustion chamber 3 and block 7 is the housing wall with thermal insulation 12 provided.
  • a compensation unit is in shape on the upper grid 8b a steel spring 10 arranged by a spacer ring 11b surrounded by a height of 12mm, on which there is a cooling block 9 supports the two in the longitudinal direction of the housing 1 in Spaced brass grids 8c, 8d in the form of nets with a cell size of 2.0 x 2.0 mm, between which 30 g of a spherical zeolite 13 of type A (NaY) 7 with natural moisture are arranged.
  • the second embodiment shown in FIGS Device differs from the first embodiment in that two cooling blocks 9a, 9b are provided, which by a spacer ring 11d are kept at a distance.
  • in the block 6 for full oxidation are four lengthways of the housing 1 extending through channels 15 are provided.
  • in the adjacent cooling block 9a are also four in the longitudinal direction through-channels 17 of housing 1 are formed, which are offset from the channels 15.
  • the spring 10 is provided below the composition 4 in the housing 1 because the pyrotechnic composition 4 not with the walls of the Thermal protection 12 is adhesively connected.
  • the ignition device 5 is housed in a central channel of composition 4.
  • FIGS. 8 and 9 also two cooling blocks 9a, 9b are provided, between their facing grids 8d, 8e the spring 10 is arranged. channels are not formed in blocks 6 and 9a, 9b.
  • the coat 16 of the housing 1 is stiffened by ribs for thermal insulation. In the cavity between the ribs is a heat absorbent Fabric is filled, e.g. Zeolite particles.
  • the Ignition device 5 is decentrally attached to the composition.
  • the ignition device 5 ignites the pyrotechnic composition 4, which is arranged in the combustion chamber 3.
  • a hot gas-aerosol mixture is formed, consisting of a solid phase of aerosol particles (K 2 CO 3 , KHCO 3 , NH 4 HCO 3 , KNO 2 , C and others) and a gas phase (CO, CO 2 , NO, NO 2 , HCN, NH 3 , CH 4 , H 2 O).
  • the gas-aerosol mixture obtained passes through the openings of the grid 8a into the block 6 for complete catalytic oxidation, where it interacts with the granules of the aluminosilicate (zeolite) 7.
  • Solid phase particles of the gas-aerosol mixture are considerably larger than the windows in the interior cavity of the Zeolite (Fig. 1) do not flow into the cavities, but on along the zeolite surface through channels in the granules arose when pouring in.
  • Gases the molecules of which do not exceed the size of 0.4 nm (CO, CO 2 , NH 3 , NO, NO 2 ), enter the interior cavities through the windows in the zeolite structure, which are formed by oxygen atoms, where their catalytic complete oxidation also takes place at a temperature of approx. 750 ° C.
  • the gas phase and the solid phase and the stability of the Ensuring temperature conditions becomes a pyrotechnic Composition with a given function in relation on the particle size of their components and their given Mass fraction used.
  • the device To temperature fluctuations during the complete oxidation due to shifts in the maximum temperature range of the Avoid temperature profile when firing the composition, the device is provided with the steel spring 10, which by the spring force block 6 of the catalytic complete Oxidation presses on the spacer ring 11a.
  • the height the spacer ring 11a ensures a constant distance between the maximum temperature range of the temperature profile when burning the composition and the block 6 of the catalytic complete oxidation.
  • Block 6 follows during the combustion of the composition of catalytic complete oxidation slowly shifting temperature profile. Block 6 thus remains catalytic complete oxidation constantly in the maximum temperature range until the end of the firing process of the composition.
  • the cooling block 9 is fixed in the housing 1 via the Spacer rings 11a, b, c.
  • the security film 14 e.g. out Aluminum foil can exist
  • a pyrotechnic composition with progressive Firing form e.g. cylinders with one or more Channels of different geometry; two or more cylinders one Diameter; two or more cylinders of different diameters; in the manner of "tube in tube” and the like
  • the block 6 can complete oxidation and the cooling block 9 with additional Channels 15 are provided (Fig. 6, 7), the pressure reduction and serve a safe operation of the device.
  • the fire extinguishing device of Fig. 3 becomes Prepared to extinguish a test fire.
  • 100 g of a pyrotechnic composition taken to the Preparation 18.33 g of a 60% mixture of phenol-formaldehyde resin in ethyl alcohol in a paddle mixer are given.
  • the proportion of phenol-formaldehyde resin is so 11.0 g.
  • the solution is put up in a reactor with a water jacket heated to + 50 ° C and processed in a mixer that at a speed of 85 revolutions per minute rotates.
  • the duration of the dissolution in ethylene alcohol is one Hour.
  • the finished solution does not contain any clot from either dissolved resin.
  • the mixture obtained is placed in a granulator, which with calibration chambers with a diameter of 1.5 mm is provided. After the mixture has passed through the calibration chambers you get a granulate of the mixture with a Length of 3 mm and the following mass ratio of the components: Potassium nitrate 70 ⁇ 0.5% of the mass, diziandiamide - 19 ⁇ 0.5% of the Mass, phenol-formaldehyde resin - 11 ⁇ 0.5% of the mass.
  • the granules obtained are placed in troughs which are in a Drying cabinet can be arranged at a temperature of + 45 ° C. During drying, which lasts 4 hours the content of the remaining volatile constituents is not 0.8% the crowd.
  • the composition is formed from the granules obtained by compression molding at a specific pressure of 1000 kp / cm 2 (100 MPa).
  • the pressing is carried out by pressing in once at a speed of 0.003 m / s, followed by holding under pressure for 5 seconds in a cylindrical heat protection made of paper with a wall thickness of 1.5 mm.
  • the pyrotechnic composition 4 a cylindrical channelless shape with a diameter of 50 mm and a recess in its central part in which a standard ignition device 5 is placed with a mass of 1 g.
  • the device is further assembled according to Figure 3.
  • the composite fire extinguishing device was used to extinguish gasoline to simulate a fire in manufacturing rooms.
  • the volume of the space to be protected was 2.5 m 3 per 100 g of the pyrotechnic composition.
  • Burning rate of the pyrotechnic composition mass fraction the solid phase of the aerosol, mass fraction of the Particles of size 1 to 2 ⁇ m in aerosol, fire extinguishing Concentration, firing temperature of the composition, as well as the Temperature of the housing, both at the outlet opening also at a distance of 200 mm from the outlet opening (The measurement was carried out using a thermoelectric contact method with Chromel-Alumel thermocouples with a soldering diameter of 100 ⁇ m).
  • the content analysis of the toxic products in the gas-aerosol mixture was carried out by taking samples via air lines, which were arranged in the middle part of the test chamber.
  • nitrogen oxides and cyanides became the gas phase over a collecting container filled with water with glass filter for 10 minutes with a pressure mixer mixed, at a rate of 2 l / min.
  • the ammonia was determined by a colorimetric method, via the product of the interaction with a Nessler reagent.
  • the lowest measurement limit in relation to the sample amount (2 ml) was 2 ⁇ g, which corresponds to a concentration of 0.5 mg / m 3 .
  • the nitrogen oxide was determined by a colorimetric method, via the product of the interaction with a Griess-Ilosvay reagent.
  • the lowest measurement limit in relation to the sample amount (2 ml) was 0.3 ⁇ g, which corresponds to a concentration of 0.075 mg / m 3 .
  • Cyanides were determined by a colorimetric method, via the reaction of the formation of iron rhodanide.
  • the lowest measurement limit in relation to the sample amount (5 ml) was 2 ⁇ g, which corresponds to a concentration of 0.1 mg / m 3 .
  • composition, burning rate and fire extinguishing characteristics of the invention and the closest prior art Name of the components in the composition Component quantity in% of the mass in the invention with a predetermined distribution function of the component particles by size Component quantity according to the patent RU 2 101 054 Potassium nitrate 70 70 dicyandiamide 19 19 Phenol-formaldehyde resin 11 11 Burning speed in mm / s 3.2 2.1 Fire extinguishing characteristics of the devices (modifications) of the invention Fig.2 Figure 3 Figure 4 Patent RU-2 101 054 Solid phase outlet of the gas-aerosol mixture,% 70 69 71 57 Mass fraction of the particles 1-2 ⁇ m in solid phase,% 68 70 69 64 Fire extinguishing effectiveness, g / m 3 36 38 34 40 Temperature, ° C Casing, 62 69 60 - Outlet opening, 320 370 325 - at a distance of 200 mm 115
  • a wide raw material base of the component used, the simplicity and reliability of the proposed method and the device are criteria for a wide industrial Speak applicability.
  • the advantages of the proposed method and the device for its implementation are: low temperature and Toxicity of the fire extinguishing gas aerosol mixture, which in given the space to be protected, the lack of flames and sparks while maintaining high fire-extinguishing effectiveness.

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Claims (11)

  1. Procédé d'extinction de feux dans lequel, pour obtenir un mélange de gaz et d'aérosol à injecter dans un espace à protéger, on exécute les étapes suivantes:
    a) allumer une composition pyrotechnique qui assure un profil de température de combustion préalablement déterminé et une composition préalablement déterminée d'une phase gazeuse et d'une phase d'aérosol, avec production de produits de combustion incomplètement brûlés,
    b) faire traverser par les produits de combustion de la composition pyrotechnique une couche d'un produit catalytiquement actif qui est disposé dans la zone des températures maximales du profil de température de combustion, les températures étant maintenues constantes par déplacement du profil de température de combustion de la composition et les produits de combustion incomplètement brûlés étant complètement oxydés,
    c) refroidissement des produits de combustion complètement oxydés par interaction avec des produits qui présentent des propriétés élevées d'absorption de chaleur, ces produits de combustion étant en même temps filtrés en fonction de leur composition et de leur taille.
  2. Procédé selon la revendication 1, dans lequel on utilise comme composition pyrotechnique qui assure la composition préalablement déterminée de la phase gazeuse et le profil des températures préalablement déterminé du dicyanodiamide comme agent de formation de gaz et d'aérosol, un polycondensat de formaldéhyde et de phénol comme liant combustible et du nitrate de potassium comme agent d'oxydation,l'agent de formation de gaz et d'aérosol, le liant combustible et l'agent d'oxydation étant tous constitués de deux fractions respectives, à savoir l'une de 40 à 80 µm et l'autre de 7 à 15 µm dans un rapport massique de 80:20, l'une de 70 à 120 µm et l'autre de 10 à 25 µm pour un rapport massique de 70:30 resp. l'une de 15 à 25 µm et l'autre de 1 à 7 µm dans un rapport massique de 25:75, les composants étant contenus dans la composition ci-dessous dans les pourcentages massiques suivants : agent de formation de gaz et d'aérosol 9 à 20 liant combustible 6 à 14 agent d'oxydation le solde.
  3. Procédé selon la revendication 1, dans lequel on utilise comme composition pyrotechnique qui assure la composition préalablement déterminée de la phase gazeuse et le profil des températures préalablement déterminé du dicyanodiamide comme agent de formation de gaz et d'aérosol et du nitrate de potassium comme agent d'oxydation, qui sont tous deux constitués de deux fractions respectives, à savoir l'une de 40 à 80 µm et l'autre de 7 à 15 µm dans un rapport massique de 10:90, respectivement l'une de 15 à 25 µm et l'autre de 1 à 7 µm dans un rapport massique de 5:95, et comme liant combustible un polycondensat de formaldéhyde et de phénol, les composants étant contenus dans les pourcentages massiques ci-dessous : agent de formation de gaze et d'aérosol 9 à 20 liant combustible 6 à 14 agent d'oxydation le solde.
  4. Procédé selon les revendications 1, 2 ou 3, dans lequel on utilise comme produits à hautes propriétés d'absorption de chaleur des produits du groupe des aluminosilicates (zéolithes), des gels de silice et des oxydes d'aluminium très poreux et activés.
  5. Procédé selon l'une des revendications 1 à 4, dans lequel l'oxydation catalytique complète a lieu à la surface d'une zéolithe qui est disposée sur une grille constituée de cuivre ou d'un produit qui contient du cuivre.
  6. Procédé selon l'une des revendications 1 à 4, dans lequel l'oxydation catalytique complète a fieu à la surface d'un granulé d'un oxyde d'aluminium activé à structure poreuse qui est disposé sur une grille métallique.
  7. Dispositif en vue de l'extinction de feux, qui présente un boítier (1) qui présente une ouverture de sortie (2), un bloc de refroidissement (9), un bloc (6) d'oxydation catalytique complète, et une chambre de combustion (3) disposée dans le boítier (1), isolée thermiquement vis-à-vis de la paroi du boítier (1) et dans laquelle sont prévus une composition pyrotechnique (4), un dispositif d'allumage (5),
    le bloc (6) d'oxydation catalytique complète présentant deux grilles métalliques (8a, 8b) disposées à distance l'une de l'autre et entre lesquelles est disposé un produit catalytiquement actif,
    le bloc (6) d'oxydation catalytique complète étant disposé à distance fixe de la composition pyrotechnique (4) et
    un dispositif de compensation (10) qui maintient la distance fixe pendant le processus de combustion de la composition pyrotechnique (4) est prévu.
  8. Dispositif selon la revendication 7, dans lequel le dispositif de compensation (10) est disposé entre le bloc de refroidissement (9) et l'ouverture de sortie (2).
  9. Dispositif selon la revendication 7, dans lequel le dispositif de compensation (10) est disposé dans la zone du fond du boítier.
  10. Dispositif selon la revendication 7, dans lequel le dispositif de compensation (10) est disposé entre le bloc (6) d'oxydation complète et le bloc de refroidissement (9).
  11. Dispositif selon l'une des revendications 7 à 10, dans lequel le dispositif de compensation (10) est formé d'un élément élastique en acier à ressort.
EP99113153A 1998-07-30 1999-07-07 Procédé et préparation pour extinction de feux Expired - Lifetime EP0976423B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
RU98113952 1998-07-30
RU98113952/12A RU2147903C1 (ru) 1998-07-30 1998-07-30 Состав для получения пиротехнического аэрозолеобразующего состава для тушения пожаров и способ получения пиротехнического аэрозолеобразующего состава для тушения пожаров
RU98122276 1998-12-15
RU98122276/12A RU2142306C1 (ru) 1998-12-15 1998-12-15 Способ пожаротушения и устройство для его осуществления

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8413733B2 (en) 2007-01-05 2013-04-09 Shaanxi J&R Fire Fighting Co., Ltd. Bi-directional horizontal spraying aerosol fire-extinguishing apparatus

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2185865C1 (ru) * 2000-12-15 2002-07-27 Общество с ограниченной ответственностью "Артех-2000" Пиротехнический аэрозолеобразующий огнетушащий композиционный материал и способ его получения
US7028782B2 (en) * 2002-11-01 2006-04-18 Nz Towers Inc. System and method for suppressing fires
WO2004028642A1 (fr) * 2002-09-28 2004-04-08 N2 Towers Inc. Systeme et procede d'extinction d'incendies
US6953775B2 (en) * 2002-10-10 2005-10-11 Burruano Brid T Composition for synthetic cervical mucus formulation
US20050115721A1 (en) 2003-12-02 2005-06-02 Blau Reed J. Man-rated fire suppression system
US7337856B2 (en) * 2003-12-02 2008-03-04 Alliant Techsystems Inc. Method and apparatus for suppression of fires
US20070079972A1 (en) * 2005-09-23 2007-04-12 Fireaway Llc Manually activated, portable fire-extinguishing aerosol generator
US20070068683A1 (en) * 2005-09-23 2007-03-29 Fireaway Llc Manually activated, portable fire-extinguishing aerosol generator
US7690837B2 (en) * 2006-03-07 2010-04-06 The Boeing Company Method of analysis of effects of cargo fire on primary aircraft structure temperatures
US7461701B2 (en) * 2006-04-10 2008-12-09 Fireaway Llc Aerosol fire-retarding delivery device
US7614458B2 (en) * 2006-04-10 2009-11-10 Fireaway Llc Ignition unit for aerosol fire-retarding delivery device
US7389825B2 (en) * 2006-04-10 2008-06-24 Fireaway Llc Aerosol fire-retarding delivery device
US7832493B2 (en) * 2006-05-04 2010-11-16 Fireaway Llc Portable fire extinguishing apparatus and method
KR100932098B1 (ko) 2006-11-07 2009-12-16 고려화공 주식회사 소화에어로졸 발생기
US8413732B2 (en) * 2006-12-11 2013-04-09 N2 Towers Inc. System and method for sodium azide based suppression of fires
US20080135266A1 (en) * 2006-12-11 2008-06-12 Richardson Adam T Sodium azide based suppression of fires
KR100806066B1 (ko) 2007-09-21 2008-02-21 주식회사 한화 에어로졸 소화기용 소화제 및 에어로졸 소화기용 소화제제조 방법
US7878259B2 (en) * 2007-11-08 2011-02-01 Gauthier Noel L Disposable tubular fire extinguisher
EP2247344A4 (fr) * 2008-02-15 2014-11-05 Kurt Hiebert Système portable de mousse à gaz comprimé
CN101716404B (zh) * 2009-05-22 2011-10-26 南京理工大学 热气溶胶灭火器材的冷却过滤层
US8672348B2 (en) 2009-06-04 2014-03-18 Alliant Techsystems Inc. Gas-generating devices with grain-retention structures and related methods and systems
CN101637637B (zh) * 2009-06-08 2011-12-07 陕西坚瑞消防股份有限公司 一种热气溶胶灭火装置
US8939225B2 (en) 2010-10-07 2015-01-27 Alliant Techsystems Inc. Inflator-based fire suppression
US8616128B2 (en) 2011-10-06 2013-12-31 Alliant Techsystems Inc. Gas generator
US8967284B2 (en) 2011-10-06 2015-03-03 Alliant Techsystems Inc. Liquid-augmented, generated-gas fire suppression systems and related methods
CN103170084B (zh) * 2011-12-20 2016-04-06 西安坚瑞安全应急设备有限责任公司 一种金属羰基灭火组合物
CN103301590A (zh) * 2013-06-07 2013-09-18 张海生 非储压式自动灭火装置及其使用方法
CN105148427B (zh) * 2015-10-12 2018-06-12 青岛职业技术学院 一种灭火装置用产气剂主动可控降温装置
US10864395B2 (en) 2017-08-07 2020-12-15 Fireaway Inc. Wet-dry fire extinguishing agent
EP3668611A1 (fr) * 2017-08-16 2020-06-24 SIA N2 Global Dispositif de génération de gaz d'extinction d'incendies
WO2019035013A1 (fr) * 2017-08-16 2019-02-21 Osaühing Mythika Invest Dispositif de génération de gaz de suppression d'incendies
WO2019034911A1 (fr) * 2017-08-16 2019-02-21 Osaühing Mythika Invest Dispositif de génération de gaz pour la lutte contre l'incendie
CN107694001B (zh) * 2017-09-29 2019-07-02 山东科技大学 一种热气溶胶灭火剂及其制备方法
CN107537128B (zh) * 2017-09-29 2018-10-02 山东科技大学 一种热气溶胶型灭火组合物及其制备方法
CN113939346B (zh) * 2019-06-19 2023-10-27 塞拉诺瓦有限公司 灭火用形成气溶胶的组合物
IT202300026772A1 (it) * 2023-12-15 2025-06-15 FIRECOM AUTOMOTIVE Srl Sistema e metodo di preparazione di un composto solido estinguente anti-incendio aerosol, ecocompatibile e prodotto così ottenuto

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1046807A (fr) * 1951-08-22 1953-12-09 Ici Ltd Cartouches étanches génératrices de gaz
US3438445A (en) * 1967-07-25 1969-04-15 Calmac Mfg Corp Life-supporting and property protecting firefighting process and apparatus
US4197213A (en) * 1978-02-28 1980-04-08 Talley Industries Of Arizona, Inc. Method and apparatus for the pyrotechnic generation of multi-component gases
US4630683A (en) * 1985-11-22 1986-12-23 The United States Of America As Represented By The Secretary Of The Army Afterburning reduction
US5188257A (en) * 1987-10-15 1993-02-23 The Coca-Cola Company Supply of controlled, medium-pressure carbon dioxide gas in simple, convenient disposable packaging
RU2005517C1 (ru) * 1992-01-30 1994-01-15 Люберецкое научно-производственное объединение "Союз" Состав для тушения пожара
RU2008045C1 (ru) * 1992-02-11 1994-02-28 Олег Леонидович Дубрава Способ тушения пожара и устройство для его осуществления
EP0569025B1 (fr) * 1992-05-08 1997-02-26 Ljuberetskoe Nauchno-Proizvodstvennoe Obiedinenie "Sojuz" Système et installation anti-incendies automatiques
US5423384A (en) * 1993-06-24 1995-06-13 Olin Corporation Apparatus for suppressing a fire
RU2113873C1 (ru) * 1994-01-26 1998-06-27 Федеральный центр двойных технологий "Союз" Система для тушения пожара и устройство для тушения пожара
RU2072135C1 (ru) * 1994-05-31 1997-01-20 Олег Леонидович Дубрава Способ тушения пожара и устройство для его осуществления
DE19546528A1 (de) * 1995-12-13 1997-06-19 Dynamit Nobel Ag Aerosolerzeugender Feuerlöschgenerator
RU2095104C1 (ru) * 1996-03-15 1997-11-10 Специальное конструкторско-технологическое бюро "Технолог" Состав для тушения пожаров
RU2095102C1 (ru) * 1996-04-24 1997-11-10 Специальное конструкторско-технологическое бюро "Технолог" Устройство для обнаружения и объемного тушения пожара и аэрозолеобразующий огнетушащий состав
RU2101054C1 (ru) * 1996-04-30 1998-01-10 Закрытое акционерное общество "Техно-ТМ" Аэрозолеобразующий состав для тушения пожаров и способ его получения
DE19636725C2 (de) * 1996-04-30 1998-07-09 Amtech R Int Inc Verfahren und Vorrichtung zum Löschen von Raumbränden
RU2087170C1 (ru) * 1996-04-30 1997-08-20 Закрытое акционерное общество "Техно-ТМ" Способ объемного пожаротушения
US5884710A (en) * 1997-07-07 1999-03-23 Autoliv Asp, Inc. Liquid pyrotechnic fire extinguishing composition producing a large amount of water vapor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8413733B2 (en) 2007-01-05 2013-04-09 Shaanxi J&R Fire Fighting Co., Ltd. Bi-directional horizontal spraying aerosol fire-extinguishing apparatus

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DE19909083A1 (de) 2000-02-03
CA2276382A1 (fr) 2000-01-30
NO992765L (no) 2000-01-31
US6089326A (en) 2000-07-18
BR9903251A (pt) 2000-04-18
EP0976423A1 (fr) 2000-02-02
NO318285B1 (no) 2005-02-28
AU750077B2 (en) 2002-07-11
DE19909083C2 (de) 2002-03-14
AU4105299A (en) 2000-02-24
SA99200480B1 (ar) 2006-10-11
NO992765D0 (no) 1999-06-08
CA2276382C (fr) 2007-12-11
DE59910706D1 (de) 2004-11-11

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